With only about 1, 000 pandas left in the world, China is desperately trying to clone(克隆) the animal and save the endangered species. That’s a move similar to what a Texas A & M University researchers have been undertaking for the past five years in a project called “Noah’s Ark”.
Noah’s Ark is aimed at collecting eggs, embryos(胚胎), semen and DNA of endangered animals and storing them in liquid nitrogen. If certain species should become extinct, Dr. Duane Kraemer, a professor in Texas A & M’s College of Veterinary Medicine, says there would be enough of the basic building blocks to reintroduce the species in the future.
It is estimated that as many as 2, 000 species of mammals, birds reptiles will become extinct in over 100 years. The panda, native only to China, is in danger of becoming extinct in the next 25 years.
This week, Chinese scientists said they grew an embryo by introducing cells from a dead female panda into the egg cells of a Japanese white rabbit. They are now trying to implant the embryo into a host animal.
The entire procedure could take from three to five years to complete.
“The nuclear transfer(核子移植) of one species to another is not easy, and the lack of available(capable of being used) panda eggs could be a major problem,” Kraemer believes. “They will probably have to do several hundred transfers to result in one pregnancy (having a baby). It takes a long time and it’s difficult, but this could be groundbreaking science if it works. They are certainly not putting any live pandas at risk, so it is worth the effort,” adds Kraemer, who is one of the leaders of the Project at Texas A& M, the first-ever attempt at cloning a dog.
“They are trying to do something that’s never been done, and this is very similar to our work in Noah’s Ark. We’re both trying to save animals that face extinction. I certainly appreciate their effort and there’s a lot we can learn from what they are attempting to do. It’s a research that is very much needed.”The aim of “Noah’s Ark” project is to _______.
| A．make efforts to clone the endangered pandas |
| B．transfer the nuclear of one animal to another |
| C．collect DNA of endangered animals to study |
| D．save endangered animals from dying out |
According to Professor Kraemer, the major problem in cloning pandas would be the lack of _______.
| A．available panda eggs | B．host animals |
| C．qualified researchers | D．enough money |
The best title for the passage may be _______.
| A．China’s Success in Pandas Cloning |
| B．Exploring the Possibility to Clone Pandas |
| C．The First Cloned Panda in the World |
| D．China —the Native Place of Pandas Forever |
From the passage we know that _______.
| A．Kraemer and his team have succeeded in cloning a dog |
| B．scientists try to implant a panda’s egg into a rabbit |
| C．Kraemer will work with Chinese scientists in clone researches |
| D．about two thousand of species will probably die out in a century |
Travelling can be a way to gain life experiences，especially during Spring Break—a week long school vacation in the United States. But what if you’re a student and don’t have enough money for a trip? Don’t worry. Here are some useful suggestions.
Save：This probably is the most important preparation for travelling. Cut expenses to fatten_your_wallet so you will have more choices about where to go and how to get there.
Plan ahead：Don’t wait until the last minute to plan your trip. Tickets may cost more when bought on short notice. Giving yourself several months to get ready can mean security and savings.
Do your homework：No matter where you go，research the places you will visit. Decide what to see. Travel books will provide information on the cheapest hotels and restaurants.
Plan sensibly：Write down what you expect to spend for food and hotels. Stick to your plan or you may not have enough money to cover everything.
Travel in groups：Find someone who is interested in visiting the same place. By travelling with others you can share costs and experiences.
Work as you go：Need more money to support your trip? Look for work in the places you visit.
Go off the beaten path：Tourist cities may be expensive. You may want to rethink your trip and go to a lesser－known area. Smaller towns can have many interesting activities and sights.
Pack necessary things：The most important things to take are not always clothes. Remember medicine in case you get sick and snacks in case you cannot find a cheap restaurant.
Use the Internet：The Net can help to save money. Some useful websites include www.Travelocity.com，www. bargains－lowestfare.com and www.economictravel.com.
By planning sensibly，even students can enjoy the travel. Your travel experiences will be remembered for a lifetime.This passage is about ________.
| A．how to get life experiences |
| B．how to travel with enough money |
| C．how to make your travel interesting |
| D．how to plan your travel |
The underlined words “fatten your wallet” probably means ________.
| A．make your wallet larger | B．put some fat in your wallet |
| C．save some money | D．put some choices in your wallet |
During your trip，________.
| A．you need more shoes than clothes |
| B．you can gain valuable life experiences |
| C．you shouldn’t look for work all the way |
| D．you should forget to do your homework |
Suppose you were a student without enough money. If you’d like to travel，you’d better do the following things EXCEPT ________.
| A．doing your homework before traveling |
| B．traveling with others |
| C．going to a place that is not so famous |
| D．taking some medicine and food in case |
The purpose of this passage is________.
| A．to encourage the students to have a trip |
| B．to give some advice on travelling |
| C．to introduce some websites about travelling |
| D．to teach the students how to save money during their trip |
Warm water freezes more quickly than cold water. Sir Francis Bacon said that almost four hundred years ago. But few people believed him until 1970. In that year a Canadian scientist George Kill proved the English professor was right. Dr Kill filled an open oil pail(桶) with cold water. He filled another with warm water. He put both in the same low temperature. The warm water froze first. The lack of covers on the pails is the secret. Some of the warm water changed into vapor. This meant that less of the warm water was left to be frozen. And so the warm water froze faster than the cold water even though it had a greater temperature drop to make.Hundreds of years ago, Sir Francis Bacon found _______.
| A．the temperature of warm water drops faster than that of cold water |
| B．warm water is heavier than cold water |
| C．warm water has the same temperature as cold water |
| D．warm water is not as useful as cold water |
What Sir Francis Bacon said was right, but people didn't believe him until _______.
| A．late in the 19th century | B．early in the 20th century |
| C．three years ago | D．late in the 20th century |
Leave a pail with warm water and another pail with cold water in the same low temperature, you’ll find that _______.
| A．cold water freezes first |
| B．warm water turns into ice before cold water |
| C．warm water and cold water freeze at the same time |
| D．much of cold water is changed into air. |
Why does warm water freeze first in the same freezing weather?
| A．Because some of the warm water turns to vapor, the amount(数量) becomes less than that of cold water. |
| B．Because warm water is lighter than cold water. |
| C．Because the temperature of warm water is lower than that of cold water. |
| D．Because cold water freezes with more difficulty than warm water. |
Thanksgiving Day is special holiday in the United States and Canada. Families and friends gather to eat and give thanks for their blessing.
Thanksgiving Day is really a harvest festival. This is why it is celebrated in late fall, after the crops are in. But one of the first thanksgivings in America had nothing to do with a good harvest. On December 4, 1619, the Pilgrims from England landed near what is now Charles City, Virginia. They knelt down and thanked God for their safe journey across the Atlantic.
The first New England Thanksgiving did celebrate a rich harvest. The Pilgrims landed at what is now Plymouth, Massachusetts, in 1620. They had a difficult time and the first winter was cruel. Many of the Pilgrims died. But the next year, they had a good harvest. So Governor Bradford declared a three-day feast（盛宴）. The Pilgrims invited Indian friends to join them for their special feast. Everyone brought food.
In time, other colonies（殖民地）began to celebrate a day of thanksgiving. But it took years before there was a national Thanksgiving Day. During the Civil War, Sarah Josepha Hale persuaded Abraham Lincoln to do something about it. He proclaimed（宣布）the last Thursday of November 1863 as a day of thanksgiving. Today, Americans celebrate this happy harvest festival on the fourth Thursday in November. Canadians celebrate Thanksgiving Day in much the same way as their American neighbors. But the Canadian thanks-giving Day falls on the second Monday in October.Thanksgiving Day is celebrated .
| A．in spring | B．summer | C．in autumn | D．in winter |
The first to celebrate thanksgiving were .
| A．some people from England | B．the American Indians |
| C．Sarah Josepha Hale | D．Governor Bradford |
The passage mainly tells us .
A. how Thanksgiving Day is celebrated in the U. S. A.
B. how Thanksgiving Day came into being and the different ways it is celebrated
C. that Thanksgiving Day is in fact a harvest holiday
D. how the way to celebrate Thanksgiving Day changed with the time and places
I arrived at the bus station much too early for the London bus, which was not to leave until five to twelve. I pushed through the crowds, looking for somewhere to sit down. Scores of people were standing about, or struggling along with their bags and the cases to find the right lines. There was a party of school girls. I could see teachers trying to keep them in order. But there was nowhere for me to sit.
I stepped into the station buffet. I looked up at the clock there. It was only twenty to twelve. I found a seat opposite a large mirror on the wall. Just then a friend of mine called Jim came in and sat with me. "What time is your bus?" asked Jim. "Oh, there's a plenty of time yet," I answered. "Oh, I'll get some drinks then," said Jim. We talked while drinking. Then I looked at the clock again. "Good heavens! It's going backward!" I cried. "A moment ago it was twenty to twelve and now it's half past eleven." "You are looking at the clock in the mirror," said Jim. I could kick myself for being so stupid. I had not realized that the marks for one and eleven on the face of the clock were the same. The next bus was not to leave for another hour. I have never liked mirror since then. The writer went to the station buffet because ________.
| A．he was thirsty |
| B．he saw the station buffet was not so crowded |
| C．it was still early for his bus and he couldn't find a place to sit at the bus station |
| D．he had changed his mind; he wouldn't go to London |
The writer sat ________.
| A．behind a mirror | B．facing a mirror |
| C．under a mirror | D．near a mirror |
Jim came to the station buffet at about ________.
| A．twenty to twelve | B．twenty past twelve |
| C．half past one | D．twenty past eleven |
What time was it when the writer looked at the clock again?
It was ________.
| A．half past eleven | B．twelve thirty |
| C．twelve twenty | D．eleven thirty |
The word “death” is a word many Chinese friends tell me I should not say aloud. They advise me to avoid the word because only speaking of it may bring ill fortune. I deeply believe, however, that to know how to live, we must also know how to die. The problem is how we talk about death.
Like everyone in Taiwan this week, I have had “Tomb Sweeping Day”. I am proud to be part of a people whose culture sends millions of families to cemeteries on this special day to share memories and endless love.
Today, eight days after the death of Pope John Paul II, millions of people of all backgrounds still grieve(悲痛) his passing away. He was a deeply human person who knew how to laugh and show emotions, a writer with a gift for words a leader who appealed to us by the sheer light of his love for life.
On the same day and only hours before the Holy Father left us, a friend of mine named Veronica McBride died of cancer in a small Wisconsin city. My friend Veronica was 52 years old. She was an attractive, humorous young woman who, as the saying goes, “never married”. She published several humor books with her mother, Mary McBride. She enjoyed traveling, and for years sent Christmas card photos of herself standing beside monuments or odd animals. She fought cancer for five years. She joked about her treatment keeping her pretty because it kept her thin, and told me she didn’t mind losing her hair because of chemo therapy. “I get to wear nice wigs!”
The last time I saw Veronica was when I visited her family on a sunny day in August in 2003. When she burst into the front door later and saw me in the living room, she ignored me completely in her hurry to hug her newest baby nephew, leaving me shaking my head in laughter at her.
As we look to the significance of the Holy Father and his life, surely we must also keep our eyes open to see the wonder and goodness in ordinary people who show us how to live and how to die.The purpose of the article is ___________.
| A．to memorize his friend Veronica |
| B．to talk about the significance of life and death |
| C．to teach us how to face life and death |
| D．to compare his friend and the Holy Father Pope John Paul II |
The underlined phrase “chemo therapy” in Paragraph 4 probably means ______.
| A．a medical treatment | B．a kind of cancer |
| C．a kind of medicine | D．the newest machine |
Why does the writer compare the Holly Father with his friend?
| A．Because they are both the persons he admires. |
| B．Because they have a lot in common. |
| C．Because he wants to show that ordinary people can be great as well. |
| D．Because he wants to memorize them both. |
From the phrase “burst into”, we can see that Veronica is ____________.
| A．brave | B．sportive | C．humorous | D．energetic |